FEASIBLE CONCRETE OF RECYCLED COARSE AGGREGATE WITH PARTIAL REPLACEMENT OF COPPER SLAG

Abstract

Day to day the natural coarse aggregate was vaporized and usage of recycled coarse aggregate was mandatory to enhance the economy of construction as well as to decrease the environmental impact from construction industry. In this research deals with the M20 grade of concrete made up of recycled coarse aggregate (RCA) from demolished building of ages of 5 years and 10 years were used and compared with conventional concrete. Fine aggregate partially replaced with the copper slag of 5%, 10%, 15% and 20%. These concrete specimens were cast and curing was done for 7 days and 28 days and observed the compressive strength for each specimen. From the experimental study it was observed that the compressive strength was decreased by increase in percentage of recycled coarse aggregate and there was increment in compressive strength while adding copper slag when comparing with the
conventional concrete for 7 days and 28 days curing period.